Sentences with phrase «unit change in mass»

The potential is related to the mass exchange, calculated from the hydraulic gradient, conductivity and the potential change per unit change in mass.

Not exact matches

By definition, it is the only object in existence with a mass of exactly 1 kilogram — one of the seven SI base units — so metrologists were unsettled to discover that this mass had changed.

Re 423 Chris G — whether the effect saturates at a given density depends on the way the temperature is distributed; if the temperature from TOA downward is isothermal for a sufficient thickness, than the effect could be saturated at TOA (if starting from a large enough optical thickness per unit atmospheric mass path, a change in the density of the gas / etc that contributes optical thickness would then have little to no effect on the flux at TOA, which is what is meant by saturation.

About increasing optical thickness per unit mass path (via changes in composition or imposed conditions)--

1) Start by computing the total GHG - free air constant mass per unit area of a gas layer between any two heights under gravity g 2) Add in the hydrostatic equilibrium pressure change with height in the gravity field 3) Compute the total enthalpy per unit area of the layer realizing the layer possesses potential energy per unit area in earth's gravity field 4) From that, realize energy conservation imposes a constraint that total dry static energy is constant in the layer (within adiabatic control volume) 5) From this, realize and compute the total entropy (S) of the layer over the height of the layer 6) Transform S computation from height to pressure by way of hydrostatic eqn.

Living tree mass could change because of net changes in forested area (due to natural or human causes) or because of changes to tree mass per unit area (due to increases in density or average tree size).